Home / 39,572.80-59,359.10-30,580

Finding the Fourth Proportional to 39,572.80, 59,359.10 and 30,580

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Solution

The fourth proportional to 39,572.80, 59,359.10 and 30,580 is: 45,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,572.80 : 59,359.10 = 30,580 : x
  2. Step 2: Convert to fraction form
    39,572.80/59,359.10 = 30,580/x
  3. Step 3: Cross multiply
    39,572.80x = 59,359.10 × 30,580
  4. Step 4: Simplify right side
    39,572.80x = 1,815,201,278
  5. Step 5: Solve for x
    x = 1,815,201,278/39,572.80
  6. Step 6: Final answer
    x = 45,869.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.